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QPuanterra <br />' Enwonmenta! <br /> services <br /> ABORATORY CONTROL SAMPLE REPORT <br />' Volatile Organics by GC <br /> Project: 094903 <br />' Category: 8020-DP-S Aromatic Volatile Organics by Direct Purge <br /> Test: 8020-BTX-L-S <br /> Matrix: SOIL <br /> QC Lot: 08 SEP 97-631 QC Run: 08 SEP 97-63A <br />' Concentration Units: ug/kg <br /> Concentration Accuracy(% <br /> Analyte Spiked Measured LCS Lime s A <br /> Benzene 20.0 19.3 97 80-120 1 <br /> Toluene 20.0 21.4 107 75-125 <br />' Ethylbenzene 20.0 20.8 104 75-125 <br /> Xylenes (total ) 60.0 63.2 105 75-125 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br />'Calculations are performed before rounding to avoid round-off errors in calculated results. <br /> P 9 <br />